Shohei Ohtani had two hits and reached base three times as the Los Angeles Dodgers won their home opener Thursday, beating the St. Louis Cardinals 7-1. Ohtani went 2-for-3 with a double and a walk, while Freddie Freeman homered and drove in three runs, and Mookie Betts hit a solo home run. The “big three” at the top of the order combined for five hits and scored six runs. Betts led off the first inning with a walk. Then, after receiving a standing ovation from the crowd of 52,667 at Dodger Stadium, Ohtani doubled to right but was thrown out on the base paths when he did not see Betts had stopp…